# Murrelektronik Passive Distribution SySTEMs & General Connectivity Quiz

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Quizzes Created: 3 | Total Attempts: 313
Questions: 12 | Attempts: 50

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This quiz is geared towards developing a general understanding in regards to passive (or pass-through) wiring technology and how those devices connect to other field devices, specifically MAC valves and Murr passive distributors.

• 1.

### Conventional wiring refers to the use of terminal strips and junction boxes.  What is/are the common responses for continuing to use this wiring method?

• A.

Weâ€™ve always done it that way

• B.

We just don't like new technology that saves our company money

• C.

We like spending more time than necessary on our jobs

• D.

None the above

A. Weâ€™ve always done it that way
Explanation
As Aaron Henry stated during our recent training session: "Murr's growth is in PASSIVE Technology!"

Make certain that you are engaging the right individuals at your Murr Passive target accounts. The guy you're talking to on the shop floor probably likes the "job security" of conventional (i.e. DISCRETE) wiring methods.

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• 2.

### Certain MAC valves have a 2.4 watt coil that operates off of a regulated 24vdc power supply.  How much current will this valve consume when energized?

• A.

It varies by PLC/controller manufacturer

• B.

0.225 Amps

• C.

0.5 Amps

• D.

0.1 Amp

D. 0.1 Amp
Explanation
The universal Power Law Formula allows us to always divide the Wattage of a device by its operating voltage to determine its current consumption, when energized. So 2.4 Watts divided by 24VDC equals 0.1 Amps.

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• 3.

### The electrical terms voltage and current most closely relate to the following fluid power terms? Click here for a clue.

• A.

Voltage=Pressure and Current=Flow

• B.

Voltage=Bore and Current=PSI

• C.

Voltage=Cv and Current=Pressure

• D.

None of the above

A. Voltage=Pressure and Current=Flow
Explanation
A DC battery is analogous to a pump in a water circuit. A pump takes in water at low pressure and does work on it, ejecting it at high pressure. A battery takes in charge at low voltage, does work on it and ejects it at high voltage. And the Flow in a water circuit becomes similar the the Current in a DC circuit, moving from the high side back around to the low side where it repeats as long as the circuit is operable.

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• 4.

• A.

Insulation Displacement Communications

• B.

Industrial Displacement Connectors

• C.

Insulation Displacement Connectors

• D.

Insulation Differential Connectors

C. Insulation Displacement Connectors
Explanation
An insulation displacement connector (IDC) is an electrical connector designed to be connected to the conductor(s) of an insulated wire or cable by a connection process which forces a selectively sharpened blades through the insulation, bypassing the need to strip the wire of insulation before connecting. IDC connectors achieve IP67 when properly installed.

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• 5.

### True or False: Electrical components incapable of controlling current by means of another electrical signal are called passive devices.

• A.

True

• B.

False

A. True
Explanation
True. In addition to Murrâ€™s M8 & M12 Passive Distributors, resistors, capacitors, inductors, transformers, and even diodes are all considered passive devices.

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• 6.

### Which of the following statements are true of Murr's passive distribution systems?

• A.

May increase wiring errors of field devices

• B.

Can make installation and start-up more complicated

• C.

Likely to increase servicing times

• D.

None of the above

D. None of the above
Explanation
The only real downside may be the initial component cost, but not always depending upon the application. But this is significantly offset by the reduction in man hours to install, maintain and troubleshoot.

Remember: people don't know what they want until you show it to them. Many are still unfamiliar with Technology such as Murr's Passive Distributors because they have never seen anything quite like it.

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• 7.

### Murr’s passive distribution systems are available with which of the following cables and/or connections? Click here and here for help.

• A.

Pre-wired homerun cables

• B.

Pluggable homerun cables

• C.

Pluggable rear connections

• D.

All of the above

D. All of the above
Explanation
In addition to pre-wired and pluggable connector cables, Murr also offers wide variety of MVP12 devices with rear, or bottom-side terminal connections for mounting on the outside of an enclosure and terminating connections through a knockout in the enclosure panel.

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• 8.

### What is the maximum number of field device connections on a Murr passive distributor? Click here for help.

• A.

4

• B.

6

• C.

8

• D.

10

D. 10
Explanation
While Murrâ€™s M12 distribution systems are available up to 8-way, the Exact8 (M8) distribution systems are available up to 10-way.

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• 9.

### On Murr’s MVP12-M series of distributors, what does the last M stands for? Click here for help.

• A.

• B.

Modbus

• C.

Modular

• D.

Metal

• E.

All of the above

D. Metal
Explanation
The MVP12-M series of extremely robust distributors are made of totally encapsulated Metal construction for particularly tough environments.

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• 10.

### True or False: The gained reliability and efficiencies on the machine build side are the main goal of passive wiring, making it an ideal "next step" for machine builders interested in reducing labor costs and time for final assembly on a machine without a complete re-design.

• A.

True

• B.

False

A. True
Explanation
In a passive wiring scheme the main focus is on creating connections using pre-terminated cables and devices that can receive/transfer signals. Wiring in your main control cabinet will likely remain exactly the same with the improvements being made to the machine mount devices. Main control cabinet wiring in this method is usually unchanged. Discreet wiring is often employed for final wire termination to the relays or I/O cards.

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• 11.

### Murr's IDC technology is comprised of which of the following components? Click here for help and select all that apply

• A.

Strain Relief

• B.

Connector Termination

• C.

Sealing Nut

• D.

Contact Carrier

A. Strain Relief
B. Connector Termination
C. Sealing Nut
D. Contact Carrier
Explanation
Murr's IDC technology is comprised of four components: strain relief, connector termination, sealing nut, and contact carrier. These components work together to ensure a secure and reliable connection in the IDC technology. The strain relief helps to protect the connection from excessive stress or strain. The connector termination is responsible for connecting the wires to the IDC technology. The sealing nut provides a tight seal to prevent any moisture or dirt from entering the connection. Lastly, the contact carrier holds the contacts in place, ensuring proper contact between the wires and the IDC technology.

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• 12.

### Which of the following Murr Valve Plugs are available to connect to MAC (and other brands of) valves? Click here for help and select all that apply.

• A.

Form A (18 mm)

• B.

Form B (10 mm)

• C.

Form BI (11 mm)

• D.

Form C (8 mm)

• E.

Form CI (9.4 mm)

A. Form A (18 mm)
B. Form B (10 mm)
C. Form BI (11 mm)
D. Form C (8 mm)
E. Form CI (9.4 mm)

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• Current Version
• May 09, 2023
Quiz Edited by
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• Jul 16, 2012
Quiz Created by
Apcompany

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